Truncate history, version 1.0.0-b2

include/beast/buffers_debug.hpp

@@ -0,0 +1,44 @@
+//
+// Copyright (c) 2013-2016 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BEAST_BUFFERS_DEBUG_HPP
+#define BEAST_BUFFERS_DEBUG_HPP
+
+#include <boost/asio/buffer.hpp>
+#include <string>
+
+namespace beast {
+namespace debug {
+
+/** Diagnostic utility to convert a `ConstBufferSequence` to a string.
+
+    @note Carriage returns and linefeeds will have additional escape
+    representations printed for visibility.
+*/
+template<class Buffers>
+std::string
+buffers_to_string(Buffers const& bs)
+{
+    using boost::asio::buffer_cast;
+    using boost::asio::buffer_size;
+    std::string s;
+    s.reserve(buffer_size(bs));
+    for(auto const& b : bs)
+        s.append(buffer_cast<char const*>(b),
+            buffer_size(b));
+    for(auto i = s.size(); i-- > 0;)
+        if(s[i] == '\r')
+            s.replace(i, 1, "\\r");
+        else if(s[i] == '\n')
+            s.replace(i, 1, "\\n\n");
+    return s;
+}
+
+} // debug
+} // beast
+
+#endif